Lancing included two young but highly promising full-backs, Charlie Gibson on the left and Shay Matthews on the right. Also back was Lukas Franzen-Jones.
Lancing hit the ground running and had a couple of early efforts on goal. Franzen-Jones won the ball at the edge of the box, laying it off to Alex Laing who forced home keeper Kaluya down to make a save.
Fine control by Laing saw him bring a high ball down and hit a pass wide to Harry Heath.He showed his marker a clean pair of heels and finished with a well struck drive which flew past the post.
Lancing were putting pressure on the home defence and it paid off on 25 minutes. Lancing stole the ball just outside the penalty area, and it landed at the feet of Alex Plummer, whose shot flew in.
Chipstead came close when Reuel Powel-Downey shot narrowly past the upright. Five minutes after taking the lead Lancing went further ahead with a clinical finish from Franzen-Jones – latching on to a pass from Andrew Briggs, he hit an accurate drive into the far corner.
Franzen-Jones came close minutes later. Matthews sent Heath clear on the right but Kaluya was able to put the ball behind for a corner. The corner was headed out only as far as Briggs,whose left foot drive produced another corner – this was played back to Matthews, who hit a fierce drive back into the six-yard box. Franzen-Jones made a valiant effort to get his head to the ball but it glanced off his head and out of play.
Another good passage of play culminated a Laing effort hitting the top of the bar. With three minutes left of the first 45 minutes, Chipstead had a glorious opportunity to reduce the arrears. Jacob Sewell embarked on a run from inside his own half, got himself into a shooting position,but with the goal gaping, dragged his shot wide.
Lancing went three up on 45 minutes. Laing began the move which led to Franzen-Jones netting for the second time . Kaluya did well to keep his first effort out but it went back to Franzen-Jones and he succeeded with his second effort from close range.
Dan Berry on 38 minutes and Danyaal Iqbal on 63 minutes came on for Chipstead. Berry got to the by-line soon after the break and forced Alieu Secka to get down at his near post to save.
On 58 minutes Lancing looked to have booked their passage into the next round by going 4-0 up. A clever piece of skill by Franzen-Jones led to him getting clear on the left, from where he delivered a cross into the six-yard box. Heath rose well to head across goal and Briggs was on hand to finish.
Lancing brought on experienced Will Berry and front man Kaiden Hummerston to provide fresh legs. But with just under a quarter of an hour to go Iqbal got on the end of a ball over the top and pulled one back for Chipstead. Lancing then brought on Callum Dowdell.
Chipstead found another gear and created a number of chances. Arlie Desganges volleyed wide, Lewis Taylor skimmed the bar and Desganges came close with a shot from outside the box which landed on the roof of the net. At the other end, Briggs hit a powerful shot which brought a good save.
As the gaDesganges produced a bolt from the blue which flew into the top corner – and nervousness crept into Lancing's play
Secka was caught out trying to allow the ball to run out of play but it failed to cross the line and he had to scamper back to his goal to be in position to keep it out.
Lancing can now look forward to an away trip to play Ascot, another Isthmian south central team on September 23 in the next round.
Matthews was named MoM, just edging it over Franzen-Jones.
Broadbridge Heath 0 Cray Valley PM 2
Broadbridge Heath made history on Saturday when they played their first game in the FA Trophy, but it ended in a 0-2 defeat to high-flying Cray, whose only dropped points so far this season were against Heath only two weeks ago.
On one of the hottest days of the year both sides had their work cut out and with only 4 minutes gone a corner for Heath by Louis Evans was met by Mario Quiasacca and his header was cleared off the line by the Cray defender.
The next 30 minutes saw the majority of possession and several blocked shots for Cray with the occasional counter attack from Heath but neither team could find the final ball to break the deadlock.
Then on the half hour mark Cray created their best chance when Clement Asiedu broke forward on the left flank and let fly, his shot was well hit, but Roshan Greensall saved well pushing the ball away for a corner.
The deadlock was broken in the 36th minute by Kyrell Lisbie, Arthur Lee played a long ball out wide for Clement Asiedu to run onto, he passed inside to Lisbie who finished well firing low past Greensall from just inside the penalty area.
Heath had one final chance to equalise before the end of the half when a Jamie Chesworth corner was met by Tad Bromage and his header was well saved by the Cray Keeper. HT: 0-1
The 2nd half started much as the previous half had finished but on 50 minutes a rare Heath attack saw Frankland drive forward and his cross shot just evaded Quiasacca.
The lead was doubled as the hour mark approached, Michael Ademiluyi crossed from the right and Freddie Parker got to the front post to head home.
On 72 minutes a rare mistake by the Cray Skipper allowed Mason Doughty to run through on goal but his lob went wide of the target.
With the clock ticking down and just seconds left Cray's keeper Sam Freeman was shown the red card, being adjudged to have handled just outside the eighteen yard line to deny a goal scoring opportunity.
Heath boss Chris Simmons said afterwards: “We changed our shape to try and keep it tight but again a small mistake is punished and we are chasing the game, very small margins in this league and If you are not at your best on the day you get beaten. Cray are a top four side and will be looking for promotion so a 2-0 defeat is not the end of the world and we are proving we can compete at this level.”